Megan Fox And Brian Austin Green 'Welcome New Baby Son To The Family'

Megan Fox and Brian Austin Green have welcomed a new baby boy to the family, it's been reported.

The Transformers beauty is said to have given birth to her second son with the former 90210 star on Thursday, according to Too Fab.

Brian and Megan are reported to have become parents for the second time (Brian To/WENN)

Megan is yet to confirm news of the new family addition online, like most celebrities, with an announcement of the birth on her official social networking page.

It may be some time before the Hollywood actress addresses the rumours as she did with the birth of her first son, 15-month-old Noah, which she managed to keep a secret from the press for several weeks in 2012.

Speaking late last year about her growing brood, the actress gushed that Noah would make an amazing big brother.

"I think [Noah is] going to be an amazing big brother with time," she told People magazine.

"I think he has an idea, but I don’t think he understands that a baby will be living with us all of the time - that will be an adjustment."

Megan, who is also stepmother to Brian's son Kassius from ex-partner Vanessa Marcil, continued: "He loves to be the center of attention and I also think he is a really sensitive child. I think that he’s going to be a nurturer."